1. Chapter at a Glance
We share this planet with millions of living beings — from microorganisms and bacteria to banyan trees, elephants and blue whales. Together with the land, water and air they form an ecosystem, and humans depend on it for food, water, air, medicine and livelihoods. India is one of the world's mega-diverse countries, with nearly 8% of the world's recorded species. This chapter explains biodiversity, how species are classified by risk, why forests and wildlife are being lost, how the government protects them, and how local communities have led conservation.
Conservation preserves ecological diversity and our life-support systems — water, air and soil. It also keeps the genetic diversity of plants and animals needed for better crops, breeds and fisheries, and protects the cultures of forest-dwelling people.
2. Classifying Species (IUCN categories)
| Category | Meaning | Examples (Indian) |
|---|---|---|
| Normal | Population considered normal for survival | Cattle, sal, pine, rodents |
| Endangered | In danger of extinction if negative factors continue | Blackbuck, crocodile, Indian wild ass, Indian rhino, lion-tailed macaque, sangai (Manipur deer) |
| Vulnerable | Population declining; likely to become endangered | Blue sheep, Asiatic elephant, Gangetic dolphin |
| Rare | Small populations that may become endangered or vulnerable | Himalayan brown bear, wild Asiatic buffalo, desert fox, hornbill |
| Endemic | Found only in a particular area, usually isolated by natural barriers | Andaman teal, Nicobar pigeon, Andaman wild pig, mithun of Arunachal Pradesh |
| Extinct | Not found after searches of known or likely habitats | Asiatic cheetah (in India), pink-headed duck |
The Asiatic cheetah was declared extinct in India in 1952, a victim of hunting and habitat loss. In 2022, under Project Cheetah, African cheetahs from Namibia (and later South Africa) were brought to Kuno National Park, Madhya Pradesh — the world's first intercontinental large-carnivore relocation. This is a reintroduction of the species, not a revival of the Asiatic sub-species.
3. Causes of Depletion of Forests and Wildlife
| Cause | Details / examples |
|---|---|
| Colonial exploitation | Railways, agriculture, commerce, forestry and mining expanded rapidly under the British |
| Agricultural expansion | The textbook notes that between 1951 and 1980, over 26,000 sq km of forest were converted to farmland |
| Commercial (enrichment) plantations | Single species like teak in South India and chir pine in the Himalaya replaced natural, diverse forests |
| Shifting cultivation | Slash-and-burn farming in some tribal belts of the north-east and central India |
| Large development projects | River valley projects since 1951 cleared over 5,000 sq km of forest; the Narmada Sagar Project alone would submerge about 40,000 ha (textbook figures) |
| Mining | Dolomite mining threatened the Buxa Tiger Reserve (West Bengal) and the corridor of animals such as the Asian elephant |
| Other factors | Grazing, fuelwood collection, habitat destruction, poaching, over-exploitation, pollution, forest fires, and unequal consumption by the rich |
Himalayan yew (Taxus wallachiana), a medicinal tree of Himachal Pradesh and Arunachal Pradesh, yields taxol, a chemical used against some cancers. Over-harvesting has endangered it. The tiger population had fallen to about 1,827 in 1973 because of poaching for skins and bones, shrinking habitat and fewer prey.
Loss of forests also hurts people: women walk farther for fuel and fodder; communities lose medicines, food and income; and deforestation worsens droughts, floods and soil erosion. Cultures that worship forests suffer too.
4. Government Conservation Measures
- Indian Wildlife (Protection) Act, 1972: banned hunting of protected species, gave legal protection to habitats, restricted trade in wildlife, and created a list of protected species. It led to national parks and wildlife sanctuaries across the country.
- Project Tiger (1973): began with nine reserves; India now has more than 55 tiger reserves, including Corbett (Uttarakhand), Sundarbans (West Bengal), Bandhavgarh (Madhya Pradesh), Sariska (Rajasthan), Manas (Assam) and Periyar (Kerala). The 2022 tiger estimate put India's wild tigers at about 3,682 — roughly three-quarters of the world's wild tigers.
- Projects for other animals: Project Elephant (1992), crocodile breeding, Project Rhino (Assam), and protection of the Asiatic lion in Gir (Gujarat).
- Insects like butterflies, moths, beetles and one dragonfly species were added to protected lists in 1980 and 1986; in 1991, six plant species were added for the first time.
Types of forests (by administration)
| Type | Status | Where |
|---|---|---|
| Reserved forests | Over half of forest land; most valuable for conservation of forest and wildlife | J&K, Andhra Pradesh, Uttarakhand, Kerala, Tamil Nadu, West Bengal, Maharashtra (large shares) |
| Protected forests | About one-third; protected from further depletion | Bihar, Haryana, Punjab, Himachal Pradesh, Odisha, Rajasthan |
| Unclassed forests | Other forests and wastelands owned by government, private individuals and communities | North-eastern States and parts of Gujarat |
Reserved and protected forests are called permanent forest estates. Madhya Pradesh has the largest area under permanent forests (about 75% of its forest area). According to the India State of Forest Report 2023, forest cover is about 21.8% of India's geographical area (about 25% with tree cover added) — still below the National Forest Policy goal of 33%.
5. Community and Conservation
Forests are home to many traditional communities, and they have long protected them.
- Sariska Tiger Reserve (Rajasthan): villagers fought mining by citing the Wildlife Protection Act.
- Alwar district (Rajasthan): five villages declared about 1,200 hectares as the Bhairodev Dakav 'Sonchuri', with their own rules banning hunting and protecting wildlife from outsiders.
- Chipko movement (Himalaya, 1970s): villagers, many of them women, hugged trees to stop felling; it also promoted community afforestation with local species.
- Beej Bachao Andolan (Tehri) and Navdanya show that diverse crops can be grown without synthetic chemicals and be economically viable.
- Joint Forest Management (JFM): began in Odisha in 1988; village institutions protect degraded forest land managed by the forest department and receive benefits like non-timber produce and a share of timber.
- Sacred groves: patches of virgin forest left untouched for nature worship. The Mundas and Santhals of Chhota Nagpur worship mahua and kadamba; the tribals of Odisha and Bihar worship tamarind and mango trees at weddings; the Bishnois of Rajasthan protect blackbuck, chinkara, nilgai and peacocks. Peepal and banyan are considered sacred by many.
6. Master Table: Key Terms
| Term | Meaning |
|---|---|
| Biodiversity | Variety of life forms in an area |
| Ecosystem | Living beings and their environment working together |
| Endemic species | Found only in one region |
| Flora / fauna | Plants / animals of a region |
| Reserved forest | Most protected forest category |
| Permanent forest estate | Reserved + protected forests |
| Enrichment plantation | Single commercial species planted over large areas |
| JFM | Joint Forest Management with village bodies |
| Sacred grove | Forest patch protected for worship |
| Poaching | Illegal hunting of wildlife |
| Taxol | Anti-cancer drug from Himalayan yew |
7. Master Summary Table
| Theme | Key facts |
|---|---|
| Biodiversity | India has ~8% of the world's recorded species |
| IUCN categories | Normal, endangered, vulnerable, rare, endemic, extinct |
| Threats | Farming, plantations, dams, mining, poaching, grazing, fires |
| Laws and projects | Wildlife Act 1972; Project Tiger 1973; Project Cheetah 2022 |
| Forest types | Reserved (>½), protected (~⅓), unclassed |
| Community | Sariska, Bhairodev Dakav, Chipko, JFM (Odisha 1988), Bishnois |
Chart — share of forest land by category (approx.):
8. Mind Map
- ~8% world species
- IUCN categories
- Farms, dams, mining
- Poaching, grazing
- Act 1972, Tiger 1973
- Reserved/protected
- Chipko, JFM
- Sacred groves
9. Tips and Tricks
- IUCN order of risk: "Never Run Very Early — Extinct" → Normal, Rare, Vulnerable, Endangered, Extinct (endemic is about location, not risk).
- 1972 Act → 1973 Tiger: the law came one year before the tiger project.
- JFM began in Odisha — "Original JFM".
- Endemic does not mean endangered — it means found only in one area.
- The cheetahs at Kuno are African, not Asiatic.
- Protected forests are about one-third; reserved forests are more than half.
10. Important One-liners
- The Wildlife (Protection) Act was passed in 1972.
- Project Tiger began in 1973.
- Madhya Pradesh has the largest area under permanent forests.
- Joint Forest Management began in Odisha in 1988.
- The Chipko movement started in the Himalaya.
- Taxol comes from the Himalayan yew.
- The sangai is an endangered deer of Manipur.
- The Andaman teal is an endemic bird.
- The pink-headed duck is extinct.
- Buxa Tiger Reserve was threatened by dolomite mining.
- Bishnois of Rajasthan protect blackbuck.
11. Previous-Year-Pattern Questions with Detailed Answers
Which of these is an endemic species?
- Asiatic elephant
- Nicobar pigeon
- Blackbuck
- Himalayan brown bear
Show answer
The Nicobar pigeon is found only in a particular isolated area. Asiatic elephant is vulnerable, blackbuck endangered and Himalayan brown bear rare.
Answer: (B)
In which State did Joint Forest Management begin?
- Rajasthan
- Uttarakhand
- Odisha
- Kerala
Show answer
Odisha passed the first JFM resolution in 1988. Rajasthan is linked to Sariska and Bishnois; Uttarakhand to Chipko.
Answer: (C)
Distinguish between reserved and protected forests.
Show answer
Reserved forests (more than half of forest land) are the most valuable and strictly protected for forests and wildlife. Protected forests (about one-third) are protected from further depletion but allow some regulated use.
Answer: Strict conservation vs protection from depletion
Explain any four causes of depletion of flora and fauna in India.
Show answer
(1) Expansion of farming and colonial-era railways. (2) Enrichment plantations of single species like teak and chir pine replacing natural forests. (3) Large dams and mining — e.g., forests submerged by river valley projects; dolomite mining in Buxa. (4) Poaching, overgrazing, fuelwood collection, pollution and forest fires.
Answer: Farming, plantations, projects/mining, poaching/grazing
What were the main features of the Wildlife Protection Act, 1972?
Show answer
It published an all-India list of protected species, banned hunting of them, gave legal protection to their habitats, restricted wildlife trade, and led to central and state governments setting up national parks and sanctuaries; special projects like Project Tiger followed.
Answer: Protected species list, hunting ban, habitat protection
How have sacred groves helped conservation?
Show answer
Communities leave certain forest patches untouched for their deities. Because cutting trees or hunting there is forbidden by custom, these groves preserve virgin forest and rare species. Examples: Mundas and Santhals worship mahua and kadamba; Bishnois protect blackbuck and chinkara.
Answer: Religious belief protects untouched forest patches
Why is the Himalayan yew in trouble?
Show answer
Its bark, needles, twigs and roots yield taxol, an anti-cancer drug. Heavy demand led to over-harvesting in Himachal Pradesh and Arunachal Pradesh, and thousands of trees dried up, so it is now endangered.
Answer: Over-exploitation for taxol
"Conservation of forests is incomplete without people's participation." Explain with examples.
Show answer
Forest communities depend on forests and know them best. Sariska villagers resisted mining; five Alwar villages created the Bhairodev Dakav Sonchuri with their own rules; Chipko protestors stopped felling in the Himalaya; JFM gives villagers a share of forest benefits for protecting them; sacred groves survive through belief. Laws alone cannot guard vast forests — local stewardship makes conservation effective and fair.
Answer: Communities protect what they depend on and value
Was Project Tiger a success? Discuss.
Show answer
Successes: from about 1,827 tigers in 1973 to about 3,682 in the 2022 estimate; more than 55 reserves protect whole ecosystems. Challenges: poaching for trade, shrinking corridors, human–tiger conflict, and setbacks such as the loss of all tigers in Sariska around 2004–05, later restocked. So it is a qualified success that needs continued protection of habitats and people's cooperation.
Answer: Largely successful but faces ongoing threats
How does loss of forests affect women and the poor more?
Show answer
Women often collect fuel, fodder, water and forest produce; when forests shrink they must walk farther and work harder, harming health and time for other work. Poor and tribal families lose food, medicine and income, and face more floods, droughts and soil loss. So deforestation deepens poverty and gender inequality.
Answer: Heavier work burden and lost livelihoods
Why are enrichment plantations criticised?
Show answer
Replacing diverse natural forests with a single commercial species (teak in the south, chir pine in the Himalaya) reduces biodiversity, removes food and shelter for wildlife, weakens soils, raises fire and pest risk, and ignores the varied needs of local people. Natural mixed forests are ecologically far richer.
Answer: Monoculture destroys diversity
12. Quick Revision Summary
- India: ~8% of world species; IUCN categories with examples.
- Depletion: farming, plantations, dams, mining (Buxa), shifting cultivation, poaching, grazing, fires; Himalayan yew.
- Government: Wildlife Act 1972, Project Tiger 1973 (1,827 → ~3,682), Project Cheetah 2022.
- Forests: reserved, protected, unclassed; MP largest permanent forest; forest cover ~21.8% (ISFR 2023) vs 33% goal.
- Community: Sariska, Bhairodev Dakav, Chipko, Beej Bachao, JFM (Odisha 1988), sacred groves, Bishnois.